Built with purposeEvery construction owner I have built a report for ends up looking at the same four numbers before anything else, in roughly the same order. Not because I told them to, but because those four numbers, read together, tell you more about whether a project is healthy than a full profit and loss statement does on its own.
Certified
Certified is what the engineer or architect has signed off as actually completed, measured against the contract. It matters first because it is the only one of the four numbers that is not about money yet, it is about physical progress that someone independent has verified. A project can look busy, with crews on site every day and materials arriving weekly, and still be behind on certification if the sign-off process is slow or disputes are dragging on a specific line item. I have seen owners assume a project is on schedule because the site looks active, only to find the certified percentage sitting well behind the calendar percentage once someone actually pulled the number.
Invoiced
Invoiced is what has actually been billed to the client against that certified work. In a well-run project, invoiced tracks certified closely, with a short, predictable lag for paperwork. When the gap between certified and invoiced starts widening, it almost always means an administrative bottleneck: certificates are sitting with someone who has not turned them into an invoice yet. That gap is pure, avoidable delay. Every week a certified amount sits uninvoiced is a week of financing cost the business is carrying for no reason connected to the client relationship at all.
Collected
Collected is the number that actually funds payroll and suppliers, and it is where I see owners get surprised most often, because a healthy invoiced number can hide a slow-paying client. Days-to-collect varies enormously by client and by project type, and a single large client paying 30 days later than usual can tie up more cash than several smaller projects combined. Watching collected against invoiced, per client, is how you catch a payment problem while it is still one overdue invoice, rather than after it has become a pattern across three projects with the same client.
Retained
Retained is money the client is contractually entitled to hold back until the project reaches a defined milestone, often practical completion or the end of a defects liability period. It is real money the business has earned and cannot yet spend, and it is the number owners most often forget to plan around. I have seen a project look profitable on paper for a year, only for the owner to realize a meaningful chunk of that profit is sitting in retention that will not release for another six months. Planning cash flow without a clear view of retention by project is planning around money that is not actually available yet.
The margin underneath all four
None of these four numbers means much without the fifth thing they all sit on top of: margin per project, calculated with labor and materials actually booked against it, not budgeted. A project can be fully certified, fully invoiced, and mostly collected, and still be losing money if the labor cost booked against it has crept past what the contract price can support. This is the number that changes an owner's decision-making the most, because it is usually the one that was hardest to see in real time before, buried in a spreadsheet nobody updated between month-end closes.
Why these four together, not separately
Looking at any one of these numbers alone is misleading. High invoiced with low collected looks fine until you check the ageing. High certified with low invoiced hides an administrative delay that a spreadsheet review each month will not catch until it has already cost weeks. The value of putting all four side by side, per project, refreshed on the same schedule as the job costing export, is that a problem in one of them shows up immediately against the other three, instead of surfacing three months later when someone finally reconciles the whole year.
What this looks like built
The report I build for contractors puts certified, invoiced, collected and retained on one page per project, next to the margin calculation, refreshed from the job costing export, timesheets and accounting system on whatever schedule matches how often the numbers actually change. It is not a replacement for the accountant's monthly close. It is the thing a project manager or owner opens between closes, when a decision cannot wait a month for the formal numbers to land. If that sounds like the gap in your own reporting, the diagnostic is the fastest way to find out what it would take to close it.